When Prince Philip and Queen Elizabeth wed in 1947, the Greek Prince was seen as fairly undesirable by the British people. Despite his royal heritage, the prince’s sordid past certainly raised some eyebrows. Though Netflix’s The Crown addresses some of Prince Philip’s past, here are the dark secrets you probably never knew about his life.

In exile from the beginning

He’s had an interesting life | Chris Jackson/Getty Images

Prince Phillip was born in 1921 to Princess Alice of Battenberg and Prince Andrew of Greece and Denmark. His father Prince Andrew was the King of Greece’s brother.

When Prince Philip was 9 years old, his mother was committed to a mental institution and “diagnosed” with something called, “neurotic-pre-psychotic libidinous condition.” Sigmund Freud treated Princess Alice, and under his recommendation, she was subjected to “an exposure of the gonads to X-rays, in order to accelerate the menopause.” She was later diagnosed with schizophrenia.

Prince Philip wasn’t reunited with his mother until 1967 when she lived out the last days of her life in Buckingham Palace.

Prince Philip later wrote, “Children may be indulged at home, but school is expected to be a Spartan and disciplined experience in the process of developing into self-controlled, considerate and independent adults.”

Prince Philip later sent his son, Prince Charles, to the same school, despite Queen Elizabeth’s objections. Season 2 of The Crown goes into great detail about both the father and son’s experiences.

Next: Some unsavory siblings

Nazi siblings

Prince Philip was the youngest of five siblings; his four sisters were much older than him when he was born. By the time he was 10 years old, all of his sisters were married to German aristocrats some were even Nazis.

A plane crash

When Prince Philip was on break from Gordonstoun, he often stayed in Germany with his favorite sister, Cecile. Unfortunately, when he was 16, Cecile, her husband, and their two children were killed in a plane crash.

Next: A very difficult year

Another tragedy strikes

A few months after his sister, Cecile, and her family were killed in a plane crash, Prince Philip’s uncle and guardian, George Mountbatten, the second Marquess of Milford Haven, suddenly died of cancer.

Gordonstoun Headmaster, Kurt Hahn, broke the news to the prince both times. He reportedly said, “His sorrow was that of a man.”

Next: An odd upbringing

Eccentric relatives

He has interesting family members. | Chris Jackson/Getty Images

Before his death, Prince Phillip often lived with his Uncle Georgie Mountbatten and his wife Nada, the great-granddaughter of the Russian poet Alexander Pushkin. Nada was extremely eccentric. Gloria Morgan Vanderbilt was her lover, and she once ordered a bathtub of champagne to soothe her feet after winning a Charleston dancing contest in Cannes, France.

Rumored affairs

They’ve had a long-lasting marriage. | Getty Images

Though nothing was ever explicitly stated, The Crown alludes to the fact that Prince Philip enjoyed the company of other women during his marriage to the queen. Though we may never know the truth, during their 50th wedding anniversary two decades ago, Prince Philip gave a toast to his wife.

He said, “I think the main lesson we have learnt is that tolerance is the one essential ingredient in any happy marriage… You can take it from me; the Queen has the quality of tolerance in abundance.”

Next: Taking on another title

A duke first and a prince later

His input is greatly valued. | Tim Ireland /WPA Pool/Getty Images

Just before Prince Philip and Queen Elizabeth wed, he became the Duke of Edinburgh. A decade later, he became His Royal Highness the Prince Philip. After Queen Elizabeth stepped into her role after her father’s death, the young couple’s life changed drastically. Pince Philip was a naval man who struggled with following his wife’s lead, and he had to define a role for himself.

Over the years, Prince Philip has overseen the couple’s personal properties and made the major decisions regarding his children’s education.

Next: A man with no filter.

Putting his foot in his mouth

He has a sense of humor. | Jane Barlow/WPA Pool/Getty Images

Though the British royal family is known for their decorum, Prince Philip has always been known to speak boldly and without much of a filter. Though his frank speech used to be deemed as offensive, he is indulged a lot more these days.

When he met activist Malala Yousafzai in 2013 to discuss why education was so important, he reportedly said, “People want children to go to school to get them out of the house.” We see no lies here.

Next: A rumor of a lifetime

A shocking rumor

Over his 70 years in the public eye, Prince Philip has been plagued by one major scandal. After Princess Diana died in a car crash in 1997 along with her lover Dodi Fayed, Fayed’s father Egyptian businessman, Mohamed Fayed, claimed that Prince Philip had ordered Princess Diana’s death.